1. Visual Neurosciences and Ocular Motility Laboratory, Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, United States
2. Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, United States
3. Daroff-Dell'Osso Ocular Motility Laboratory, Louis Stokes Cleveland VA Medical Center, Cleveland, Ohio, United States
4. Case Western Reserve University, Cleveland, Ohio, United States
5. Department of Neurology, Neurological Institute, University Hospitals, Cleveland, Ohio, United States